Author

Chengzhu Bao

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Preprint Aug 2026

FOCUS: FP4 Optimization via Coupled-Relaxation and Dual-Granularity Scaling

FOCUS is proposed, a post-training quantization framework with end-to-end scale learning for FP4 Optimization via Coupled-Relaxation and Dual-Granularity Scaling, which relaxes the tight coupling between quantization and dequantization scales with a learnable full-precision coefficient, enabling more effective optimiza...

Xiang-Long Yan, Hong Liu, Cheng-Zhu Bao et al. · 1 citation